saunders



(No Model.) 3 SheetsSheet 1 W. L. SAUNDERS.

MINING MACHINE. No. 320,294. Patented June 16 $85.

vvue wlm (/0 William L.SawzZers.

(No Model.) 3 Sheets-Sheet 2.

W. L. SAUNDERS.

MINING MACHINE.

No. 320,294. Patented June 16, 1885 ammo/Whoa Willzaln L. Saunders 3613 Wu. a libozwe/ m N. PETERS, Vhoto-Lllhognphur. Wnhmgtom IJ. (Iv

(No Model.) 3 Sheets-Sheet 3. W. L. SAUNDERS.

MINING MAOHINE. No. 320,294. Patented June 16, 1885.

UNTTEE STATES PATENT rETcE.

\VILLIAM L. SAUNDERS, OF JERSEY CITY, NE\V JERSEY.

MINING-MACHlNE.

SPECIFICATION forming part of Letters Patent No. 320,294, dated June 16, 1885.

Application filed February 14, 18%5.

To all whom it may concern.-

Be it known that I, WILLIAM L. SAUNDERS, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Coal Mining Machines, of which the following is a specification, reference being bad to the accompanying drawings.

The object of my invention is to produce a simple and effective coal-mining machine; and it consists in novel means of mounting and operating reciprocating directacting drills, such drills to be used to cut acontinuous channel under or around a mass of coal,and thereby to enable me to substitute a comparatively light and simple machine for the heavy and complicated organization of mechanism heretofore used for such purposes and known as channeling-machines, and it consists, furth er, in the various details of arrangement, construction, and operation hereinafter described and claimed.

In the accompanying drawings, Figures 1 and 5 are views in elevation of a roclrdrill and its support constructed and arranged inaccordance with my invention. Fi 2 is a transverse sectional elevation of the devices shown in Fig. 1. Fig. 3 is a plan view. Fig. 4 is a detail view showingthe construction of the upper pivot, and Fig. 6 shows a modification of the supporting devices.

Similar letters denote like parts.

A is a column or uprightprovided at its upper end with points or prongs, and having at its lower portion the arms or bifurcations a, which rest upon and are secured to a bar or yoke, B, which is supported upon adjustable screw-feet 1), extending through its extremities, and by means of which the column is firmly secured in its working position. The column A is preferably constructed of iron tubing, and where the tube terminates and the arms a are attached is inserted and firmly secured a block, 0, which is internally screwthreaded and provided with the pointed adjustable screw-pivot I), and at a point directly opposite thereto is placed a second pivot, d, which may be inserted in or attached to the yoke-piece B in any suitable manner.

Between the pivots D and d, which may be (No model.)

larger or smaller, according to circumstances, is placed a cylinder or shell, E, which is provided with a frictionroller or carrying-wheel, e, at or near its inner extremity, and a suitable handle, F, by which it can be moved upon its pivots to any point within the limit of its operations. \Vithin this shell is mounted in any suitable manner the cylinder H of any percussion-drilling engine, the particular construction of which is not herein given, as I contemplate using any available machine that can be placed within the shell E, and therein operated by steam, compressed air, or other gaseous fluid, and also be gradually fed forward therefrom automatically or by hand, the steam and exhaust ports being placed at any convenient points in the shell E.

A suitable way or track, G, is provided for the carrying-wheel a, which enables the attendant b0 readily move the shell E, together with the drilling-engine, to any desired point within the are of its adjustment.

The yoke B may be straight instead of curved, as shown, and the arms a may be curved instead of straight, as shown, or the column may be formed of cast metal having a divided portion sufticiently large to receive the pivots and the shell E. The form shown is, however, the strongest and most efficient at present known to me, as the yoke and its support form a solid and steady base for the apparatus; but it may, as above suggested, be variously modified without departing :l'ro 1n the spirit of my invention.

The operation of my device is as follows: The column A, being, by means of its screwfeet, firmly secured in position, whether horizontally, vertical, or otherwise, and the shell E, together wit-h its drilling-engine, placed in the desired position, when the drill is started and the shell carefully and regularly moved upon its axis a continuous radial channel will be cut, as indicated in Fig. 3. If, new, this apparatus be moved about half the distance of the length of its out, and so on, after each cutting, a continuous channel having an undulating bottom will be formed. By proper manipulation of the feed of the cylinder this undulating bottom may be brought to a level when it is considered desirable to do so.

I contemplate utilizing this device more particularly 'in getting out coal, but it will be found equally efficient for other work, and while I find a carrying-wheel of great assistance when the device is working horizontally when cutting avert-ical channel, itis sufficient that the rear end be held by the attendant, for the weight is evenly distributed upon both pivots, and the carrying-wheel need not be provided for when working in any position away from the horizontal. The wheel not being in the way, however, the same drilling appara tus may and is intended to be used in all the different positions.

In Fig. 6 is shown a modified construction of the supporting-column, it being provided with a pair of brackets, K, extending laterally and provided with pivots, between which the shell E is supported, the said brackets being either detachable and secured by bolts at any desired point on the column, or formed with a sleeve fitting the outside of the collar, which, together with the drilling apparatus, can then be secured at any height or in any position that may be desirable or convenient.

I am aware that it has been proposed to undercut coal by means of a reciprocating drilling engine mounted upon a tripod, the piston being fed forward in the ordinary manner, and the drill-cylinderswung radially upon a pivot, so as to cut a semicircular channel near the floor-line.

I am also aware that it is common to mount drilling-engines pivotally on a frame or carriage, thereby enabling them to cut a shallow vertical channel; and these devices I do not claim, my invention consisting in so mounting a reciprocating drilling-engine within a suitable shell or cylinder and in so supporting said cylinder that the drill can be brought into operation at the floor-line, the cylinder being sufficient to properly support the drilling-engine, no matter 110w far it may have been projected from its support. Further, the supportingcolumn I use being fixed both above and be low cannot be overturned by the resistance offered when drilling hard material, such as fireclay, and as constructed it will be seen that a number of the columns may be utilized with one drilling-engine, the columns being placed in position, and the shell, with its contained engine, moved from one to the other.

Having described my invention, what I claim, and desire to secure by Letters Patent,

1. The combination, with a stationary column having an opening therein, of a reciproeating drilling-engine, a shell or cylinder inclosing said engine, and means consisting of suitable pivots whereby the said cylinder is mounted within the opening in the column, substantially as described.

2. The combination, with a suitable column, of a drilling-engine, a shell or cylinder inclosing said engine, and pivotally supported by said column at a point forward of its center, and provided with a suitable roller or carrying-wheel at a point back of its center, substantially as described.

3. The combination, with an adjustable column having arms or bifurcations forming an opening at one end, said bifurcations being attached to a transverse bar or yoke provided with suitable feet and having a centrally-disposed pivot, of a drilling-engine and a shell or cylinder inclosing said engine, and mounted upon the aforesaid pivot, and provided with a ear'ryingwheel at its rear end, substantially as described.

4. The combination, with the column A, of the arms a, extendingfrom the extremity thereof, an adjustable pivot, D, a yoke or bar, .13, to which said arms are connected, said yoke being provided with a pivot, d, a reciprocating drillingengine, and a shell or cylinder inclosing said engine and mounted between said pivots, substantially as described.

5. The combination, with the column A, having arms or bifurcations forming an opening at one end thereof, and the adjustable pivot D, of a yoke or bar to which said arms are connected, said yoke being also provided with 'asuitable pivot, d, a drilling-engine, and a shell or cylinder inclosing said engine, and mounted between the pivots D d at a point forward of its center, and provided with a supporting-Wheel at or near its rear end, sub- J stantially as described.

6. The combination of the column A, provided with the block 0 and screw-pivot D, a

pair of arms extending outwardly and down wardly from said block, a cross bar or yoke, also having a pivot, and to which said arms are united, and a drill-supporting shell or cylinder mounted between said pivots, substantially as described.

In testimony whereof I hereto affix my signature in presence of two witnesses.

WILLIAM L. SAUNDERS.

Witnesses:

JOHN D. MILLER, J. GUYAT. 

